CN220965609U

CN220965609U - Grass mowing head

Info

Publication number: CN220965609U
Application number: CN202322751269.0U
Authority: CN
Inventors: 闵国庆
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-05-17
Anticipated expiration: 2033-10-12

Abstract

The utility model provides a grass mowing head which is used for being connected with a driving shaft of a driving piece, wherein the grass mowing head comprises a base and a knocking head assembled and connected with the base, the grass mowing head also comprises a locking insert assembled and fixed in the base and the knocking head, one end of the locking insert stretches into the knocking head, the other end of the locking insert penetrates through the base to be connected with the driving shaft, the locking insert comprises a body and a nylon sleeve pressed in the body, the nylon sleeve is fixedly arranged relative to the body, and the driving shaft is screwed into the nylon sleeve from one end of the body and stretches into the nylon sleeve so as to tightly connect the driving shaft with the grass mowing head through the nylon sleeve. Compared with the prior art, the grass cutting head solves the problem of time and labor consumption in removing the grass winding, avoids falling off when the grass cutting head is reversed to remove the grass winding, can be replaced quickly, and improves the use experience of users.

Description

Grass mowing head

Technical Field

The utility model relates to a grass mowing head, and belongs to the field of garden tools.

Background

Grass cutters are commonly used as a garden tool for cutting lawns.

The condition of grass winding can appear in traditional grass trimmer after working a period, has grass trimmer increase reverse function to get rid of grass winding on the present market, but can appear the condition that grass head dropped to need dismantle the head of beating when changing the grass head, and must adopt the instrument just can dismantle and change, expend time and energy, influence user experience.

In view of the foregoing, there is a need for improvements over existing grass cutting heads that address the above-described issues.

Disclosure of utility model

The utility model aims to provide a grass mowing head which can quickly remove grass winding through a reversing function and can be replaced quickly.

In order to achieve the above purpose, the utility model provides a grass cutting head which is used for being connected with a driving shaft of a driving piece, the grass cutting head comprises a base and a knocking head which is assembled and connected with the base, the grass cutting head further comprises a locking insert which is assembled and fixed in the base and the knocking head, one end of the locking insert stretches into the knocking head, the other end of the locking insert penetrates through the base to be connected with the driving shaft, the locking insert comprises a body and a nylon sleeve which is pressed in the body, the nylon sleeve is fixedly arranged relative to the body, and the driving shaft is screwed into the nylon sleeve from one end of the body and stretches into the nylon sleeve so as to tightly connect the driving shaft with the grass cutting head through the nylon sleeve.

As a further improvement of the utility model, the body is in a cylindrical shape, the outer peripheral wall of the body is provided with a positioning piece protruding outwards, the base is correspondingly provided with a fixing groove, and the positioning piece is accommodated in the fixing groove so as to realize positioning connection of the body and the base.

As a further improvement of the utility model, the body is of a hollow annular structure, a thread structure is arranged on the inner peripheral wall of the body, and the driving shaft is inserted into the body and matched with the thread structure to realize screwing.

As a further improvement of the utility model, the nylon sleeve is also arranged in a hollow ring shape, the body is internally provided with a mounting cavity, the mounting cavity is positioned at one side of the thread structure, the nylon sleeve is fixed in the mounting cavity, and the driving shaft is screwed into the nylon sleeve through the thread structure.

As a further improvement of the utility model, in the screwing direction of the driving shaft, the screw structure is arranged at the middle position of the body, the positioning piece is arranged above the screw structure and near the base, and the mounting cavity is arranged below the screw structure and near the knocking head.

As a further improvement of the utility model, the inner diameter of the installation cavity is larger than the inner diameter of the thread structure, and the nylon sleeve is attached to the inner wall surface of the installation cavity.

As a further improvement of the utility model, a fixed column is arranged at the central position of the knocking head, one end of the body extends into the fixed column and is fixedly connected with the fixed column, one side of the base, which is far away from the knocking head, is provided with a mounting opening, and the other end of the body penetrates through the mounting opening to be connected with the driving shaft.

As a further improvement of the utility model, the nylon sleeve is fixed at one end of the body extending into the fixing column.

As a further improvement of the utility model, the grass-mowing head also comprises a knocking spring, wherein one end of the knocking spring is fixed in the base, and the other end of the knocking spring is sleeved on the outer side of the fixed column, so that the knocking head can axially move relative to the base when knocking the knocking head, and paying-off is realized.

As a further improvement of the utility model, the grass cutting head further comprises a wire spool and a connecting piece, wherein the wire spool is surrounded on the outer side of the locking insert and fixedly connected with the knocking head, and the connecting piece is surrounded on the outer side of the wire spool and fixedly connected with the base.

The beneficial effects of the utility model are as follows: according to the grass mowing head, the locking inserts are assembled and fixed in the base and the knocking head, one end of each locking insert extends into the knocking head, and the other end of each locking insert penetrates through the base and is connected with the driving shaft, so that the grass mowing head is fixedly connected with the driving shaft. In addition, the nylon sleeve is arranged in the body in a pressing mode, and therefore the driving shaft can extend into the nylon sleeve to achieve tight connection between the driving shaft and the grass cutting head. Compared with the prior art, the grass mowing head solves the problem of time and labor consumption in the process of removing the entangled grass, avoids falling of the grass mowing head when the grass mowing head is reversed to remove the entangled grass, can be replaced quickly, and improves the use experience of users.

Drawings

FIG. 1 is a schematic perspective view of a grass cutting head according to the present utility model.

Fig. 2 is an exploded view of the grass cutting head of fig. 1.

FIG. 3 is an assembly view of the locking insert and the tapping head of FIG. 1.

Fig. 4 is a schematic perspective view of the base in fig. 2.

Fig. 5 is a schematic perspective view of the tapping head of fig. 2.

Fig. 6 is a schematic perspective view of the wire spool of fig. 2.

Fig. 7 is a schematic perspective view of the locking insert of fig. 2.

Fig. 8 is another angular perspective view of the locking insert of fig. 2.

Fig. 9 is a cross-sectional view of the locking insert of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, a grass cutting head 100 is disclosed for connection with a drive shaft (not shown) of a drive member, which may be a gearbox or a motor, without limitation.

The grass cutting head 100 comprises a base 1, a knocking head 2 assembled and connected with the base 1, a wire spool 3 and a connecting piece 4 assembled in the base 1 and the knocking head 2, and a grass cutting rope 5 is wound on the wire spool 3. The grass-mowing head 100 further comprises a locking insert 6 assembled and fixed in the base 1 and the knocking head 2, wherein one end of the locking insert 6 extends into the knocking head 2, and the other end penetrates through the base 1 to be connected with a driving shaft. The locking inserts 6 are used for locking the driving shaft, after the grass mowing machine works for a period of time, grass winding can occur on the grass mowing head 100, the grass winding can be removed rapidly through the reversing function of the grass mowing head 100, when the grass mowing head 100 reverses, due to the locking effect of the locking inserts 6, the condition that the grass mowing head 100 falls off when the wound grass scraps are thrown away by the grass mowing head 100 is avoided, the problem of time and labor consumption in the grass winding removal is solved, and meanwhile, the safety of use of a user is higher.

As shown in fig. 3-6, the base 1 is provided with a fixing groove 11, the locking insert 6 is accommodated in the fixing groove 11, a mounting opening 12 is formed in one side of the base 1 away from the knocking head 2, and the locking insert 6 penetrates through the mounting opening 12 to be connected with the driving shaft. The center position department of beating head 2 is equipped with fixed column 21, the one end of locking inserts 6 stretch into in the fixed column 21 and with fixed column 21 fixed connection, encircle fixed column 21 is equipped with annular fixed limit 22, fixed limit 22 with be equipped with a plurality of protruding muscle 23 between the fixed column 21, fixed column 21 is close to beat the one end of head 2 and be equipped with horizontal fluting 24 that run through. The grass cutting head 100 is further provided with a wire groove 7, and the wire groove 7 is connected with the convex rib 23 in a matching way, so that the wire groove 7 is aligned with the slot 24.

Further, the wire spool 3 is enclosed in the outside of the fixed edge 22 and is fixedly connected with the knocking head 2, one end of the wire spool 3, which is close to the base 1, is enclosed in the outside of the locking insert 6, the wire spool 3 is provided with a winding space 31, and a first connecting plate 32 and a second connecting plate 33 which are positioned at two ends of the winding space 31 and are mutually parallel, and the first connecting plate 32 is connected with the base 1 in a matching way. The outside of wire reel 3 encloses and is equipped with connecting piece 4, connecting piece 4 with base 1 fixed connection, connecting piece 4 with strike and have the compression space between the head 2. The grass-mowing head 100 further comprises a knocking spring 8, one end of the knocking spring 8 is fixed in the base 1, the other end of the knocking spring is sleeved on the outer side of the fixed column 21, and when the grass-mowing head 2 is knocked, the grass-mowing head 2 can axially move in the compression space relative to the base 1, so that paying-off is achieved.

As shown in fig. 7-9, the locking insert 6 includes a body 61 and a nylon sleeve 62 press-fitted inside the body 61, the nylon sleeve 62 is fixedly disposed with respect to the body 61, and the nylon sleeve 62 has wear resistance, which improves the quality of the locking insert 6 and has a long service life. The driving shaft is screwed from one end of the body 61 and extends into the nylon sleeve 62 to tightly connect the driving shaft with the grass cutting head 100 through the nylon sleeve 62. Therefore, when the driving shaft drives the grass cutting head 100 to rotate reversely, the grass cutting head 100 cannot fall off the driving shaft due to the locking of the nylon sleeve 62, that is, when the grass cutting head 100 rotates reversely, the grass cutting head 100 and the driving shaft cannot rotate relatively.

Specifically, one end of the body 61 extends into the fixing column 21 and is fixedly connected with the fixing column 21, the other end of the body 61 penetrates through the mounting opening 12 to be connected with the driving shaft, and the nylon sleeve 62 is fixed at one end of the body 61 extending into the fixing column 21. The body 61 is in a cylindrical arrangement, a positioning piece 611 protruding outwards is arranged on the outer peripheral wall of the body 61, and the positioning piece 611 is accommodated in the fixing groove 11, so as to realize positioning connection between the body 61 and the base 1. In this embodiment, the positioning member 611 is nut-shaped, and the receiving space of the fixing groove 11 is correspondingly nut-shaped, so that the locking insert 6 and the base 1 do not rotate relatively, and the shape of the positioning member 611 and the shape of the receiving space of the fixing groove 11 are not limited herein.

The body 61 is a hollow annular structure, a thread structure 612 is arranged on the inner peripheral wall of the body 61, and the driving shaft is inserted into the body 61 and matched with the thread structure 612 to realize screwing. The nylon sleeve 62 is also in a hollow annular shape, a mounting cavity (not numbered) is arranged in the body 61, the mounting cavity is positioned on one side of the threaded structure 612, the nylon sleeve 62 is fixed in the mounting cavity, the driving shaft is screwed into the nylon sleeve 62 through the threaded structure 612, and when the driving shaft is screwed in, the nylon sleeve 62 cannot rotate along with the driving shaft or be ejected out by the driving shaft. In the screwing direction of the driving shaft, the screw structure 612 is disposed at the middle position of the body 61, the positioning member 611 is disposed above the screw structure 612 and near the base 1, the mounting cavity is disposed below the screw structure 612 and near the tapping head 2, and the screw structure 612 makes it easier to screw the driving shaft into or out of the nylon sleeve 62, and less force is required.

The internal diameter of installation cavity is greater than the screw thread internal diameter of screw thread structure 612, nylon cover 62 laminating the internal face setting of installation cavity, the internal diameter of nylon cover 62 is slightly greater than the screw thread internal diameter of screw thread structure 612, so that when the drive shaft screw in locking inserts 6, nylon cover 62 can not too tight or too loose with the drive shaft connection, after the grass cutting head 100 wearing and tearing, fixing under the condition of drive shaft, can direct quick rotatory pull down grass cutting head 100 is changed, need not dismantle beat head 2, adopts the instrument just can change grass cutting head 100.

In summary, the grass-mowing head 100 of the present utility model is assembled and fixed with the locking insert 6 in the base 1 and the striking head 2, and one end of the locking insert 6 extends into the striking head 2, and the other end penetrates through the base 1 to be connected with the driving shaft, so as to connect the driving shaft with the grass-mowing head 100; in addition, the grass cutting head 100 of the present utility model is further constructed by providing the locking insert 6 to include the body 61 and the nylon bush 62 press-fitted inside the body 61, and the nylon bush 62 is fixedly provided with respect to the body 61, so that when the driving shaft is screwed into and extended into the nylon bush 62 from one end of the body 61, the driving shaft and the grass cutting head 100 can be tightly coupled by the nylon bush 62. Compared with the prior art, the grass cutting head 100 solves the problem of time and labor consumption in removing the entangled grass, avoids falling of the grass cutting head 100 when the entangled grass is removed by reversing, can realize quick replacement of the grass cutting head 100, and improves the use experience of users.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a grass mowing head for link to each other with the drive shaft of driving piece, grass mowing head include the base and with the base equipment is connected beat the head, its characterized in that: the grass cutting head also comprises a locking insert which is assembled and fixed in the base and the knocking head, one end of the locking insert extends into the knocking head, the other end of the locking insert penetrates through the base to be connected with a driving shaft, the locking insert comprises a body and a nylon sleeve which is pressed into the body, the nylon sleeve is fixedly arranged relative to the body, and the driving shaft is screwed into and extends into the nylon sleeve from one end of the body so as to tightly connect the driving shaft with the grass cutting head through the nylon sleeve.

2. A grass cutting head as claimed in claim 1, wherein: the body is cylindric setting, be equipped with the setting element that outwards protrudes on the peripheral wall of body, be equipped with the fixed slot in the base corresponds, the setting element is acceptd in the fixed slot, in order to realize the body with the location of base is connected.

3. A grass cutting head as claimed in claim 2, wherein: the body is hollow annular structure, be equipped with the helicitic texture on the inner peripheral wall of body, the drive shaft inserts in the body and with the helicitic texture cooperation realizes the screw in.

4. A grass cutting head as claimed in claim 3, wherein: the nylon sleeve is also in a hollow annular shape, an installation cavity is arranged in the nylon sleeve body and is positioned on one side of the threaded structure, the nylon sleeve is fixed in the installation cavity, and the driving shaft is screwed into the nylon sleeve through the threaded structure.

5. A grass cutting head as claimed in claim 4, wherein: in the screw-in direction of the driving shaft, the thread structure is arranged at the middle position of the body, the positioning piece is positioned above the thread structure and close to the base, and the mounting cavity is positioned below the thread structure and close to the knocking head.

6. A grass cutting head as claimed in claim 4, wherein: the internal diameter of installation cavity is greater than the screw thread internal diameter of helicitic texture, nylon cover laminating the internal face setting in installation cavity.

7. A grass cutting head as claimed in claim 1, wherein: the center position department of beating the head is equipped with the fixed column, the one end of body stretch into in the fixed column and with fixed column fixed connection, the installing port has been seted up to the base keep away from beating first one side, the other end of body run through the installing port with drive shaft connection.

8. A grass cutting head as claimed in claim 7, wherein: the nylon sleeve is fixed at one end of the body extending into the fixing column.

9. A grass cutting head as claimed in claim 7, wherein: the grass mowing head further comprises a knocking spring, one end of the knocking spring is fixed in the base, the other end of the knocking spring is sleeved on the outer side of the fixed column, and when the grass mowing head is knocked, the knocking head can axially move relative to the base, so that paying-off is achieved.

10. A grass cutting head as claimed in claim 1, wherein: the grass mowing head further comprises a wire spool and a connecting piece, wherein the wire spool is arranged on the outer side of the locking insert in a surrounding mode and fixedly connected with the knocking head, and the connecting piece is arranged on the outer side of the wire spool in a surrounding mode and fixedly connected with the base.